G. Wagner, G. Antoniou, S. Tabet, and H. Boley. WI '04: Proceedings of the Web Intelligence, IEEE/WIC/ACM International Conference on (WI'04), page 628--631. Washington, DC, USA, IEEE Computer Society, (2004)
G. Wagner, A. Giurca, and S. Lukichev. Principles and Practices of Semantic Web Reasoning, 05371, Internationales Begegnungs- und Forschungszentrum fuer Informatik (IBFI), Schloss Dagstuhl, Germany, (2006)$<$http://drops.dagstuhl.de/opus/volltexte/2006/479$>$
date of citation: 2006-01-01.